I take my 19 month old DD to soft play most weeks since they’ve reopened. I’m 7 months pregnant with DC2.
I’m so sick of parents not supervising their kids properly. Today was a classic. Another mum with 2 boys, at a guess I’d say that the oldest was 7, youngest 3. Both really boisterous kids. The mum spent most of the time sat at her table on her phone. She checked on them now and again but mostly left them to it. At one point she even took the toddler to the toilet and left the older one completely unsupervised. 
I took DD to the large bit of the soft play that’s recommended for older ones which is my own doing but DD is really headstrong and finds the baby bit really boring now. But they were running all over the place and she got knocked over twice.
I also don’t understand why the 7 year old wasn’t at school. Part of the reason we go on weekdays is because it’s quieter and usually full of toddlers. I wouldn’t go on weekends cos I accept that there will be school age kids there.
I’m just sick of it. I manage to clamber all over the equipment and supervise my toddler despite being heavily pregnant. I don’t understand why it’s so difficult for others to do the same